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OneWash 2000-3100PSI 2.8GPM

Model #6602

Starting At

$399.00 MSRP Where To Buy

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The new OneWash™ from Generac. It’s four power washers in one. The OneWash features the largest, most powerful engine in its class. And the innovative PowerDial™ provides total control at the turn of a dial, so you can easily adjust the intensity of the spray to clean a wide range of surfaces, all with a single, easy-to-use control.

PowerDial™ Variable-Pressure Control

Provides total control at the turn of a dial. Easily adjust the intensity of the spray to clean a wide range of surfaces with a single, easy-to-use control.

Folding Handle

Lets the already compact OneWash take up even less space in your garage or shed during storage. Makes it easy to transport, too.

Drainable Detergent Tank

Integrated 3/4 gallon tank with drain plug provides convenient onboard storage for cleaning detergents. Can be quickly emptied and cleaned with a garden hose.

Axial Cam Pump with Easy Access Hose Connections

Easily make hose connections without having to kneel on the ground.

Additional Features

Generac 212cc OHV Engine – Largest, most powerful engine in its class delivers 2000 - 3100 PSI at 2.8 GPM.

Consolidated Control Panel – All controls are efficiently located in a single location

Comfort-grip Handle – Provides greater comfort for ease-of-use. Easy-to-pull inverted trigger reduces fatigue. Rear hose connection on spray gun provides better balance and comfort.

30’ High Pressure Hose – Extended range for improved use

Oversized Never Flat Tires – Improved mobility on rugged terrain

Three Quick Click™ Nozzle Tips Included – 0 degree, 25 degree, and soap

The Power to

Concrete. Siding. Vehicles. And Much More.

Whether you're washing the driveway or prepping for a painting job, you need the right tool. Enter Generac pressure washers. Our customer research led us to engineer our pressure washers from the ground up, to meet your specific needs.

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Rated 4 out of 5 by from Great power washer I like the adjustments for water pressure. It is very nice and works great!! I only had it for a week and used it once for my atv. The only thing that could be better is where you hang your hose. The hose always fall off. Other than that it worked awesome.
Date published: 2018-04-18
Rated 3 out of 5 by from Has ongoing issues with Carburator This worked for a year but has some issues that need adjustment. The carburetor failed after about 10 uses after taking it apart there was sediment and rust in the reservoir in less than a year. you will need to put a small inline filter on this to keep the fuel clean cause even a little gunk will hose this cheap carburetor. Make sure you burn out all of the fuel in the reservoir before you shut it down, use sta-bill or the build-up of gunk will kill this carburetor. Simply not the quality that Generac once had. Maybe good for daily business use but if it sits for winter it needs to be seriously winterized and drained of all fuel and treated like a boat engine
Date published: 2018-04-03
Rated 1 out of 5 by from A Quick Failure Upon receiving it, getting it ready to wouldn't crank. Switch wires were disconnected. The whole unit will snatch around or turn over upon trying to start. The carburetor failed after a short time and would not idle no matter what was done. The fold down handle is very flimsy and poorly designed . Too many plastic parts guaranteed to fail. The water supply hookup is in a bad location. The gas engine is a poor engine at best. I didn't get 1 years worth of service from it for home use. I'm sadly disappointed. This did not live up to Generac's past good reputation.
Date published: 2018-03-17
Rated 5 out of 5 by from This product surpassed my expectations Was well worth the investment over other cheap models that I've had in the past. Overall good quality quiet Dependable pressure
Date published: 2018-03-08
Rated 4 out of 5 by from great quality Generac stands up to its reputation of quality and reliability.
Date published: 2018-02-20
Rated 2 out of 5 by from Horrible We bought this in sept 2017 by oct a knob had broken off by december the other knob broke off and we have no handle now. By November it started running horrible, then by december we had no pressure and the pump wasnt running. Its january and we have it at a place now for warranty work on it. Less than 6 months and its basically a dead door stop. The first 3 weeks were great maybe and then it just went downhill.
Date published: 2018-01-25
Rated 5 out of 5 by from Runs smooth Runs great quiet and smooth. good pressure also paired with a turbo nozzle or a rotary brush is a big win. i use foam cannon too and works great. the only i think they can improve is a longer hose
Date published: 2017-12-04
Rated 5 out of 5 by from This product was easy to use. I pressure washed my metal roof to prepare it for paining and pressure washed my siding on my house and it did a super job. I love the different settings to use on different jobs. I also washed my parents vehicle and my vehicle. It worked great and got the vehicles sparkling clean! Thank you for making a wonderful product that I will use for many years!
Date published: 2017-11-20
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OneWash Residential 6602 is rated 4.8 out of 5 by 364.
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Pressure Washer Accessories

Maximize your investment and maintain your Generac pressure washer with a variety of accessories.